The Urban Dictionary T-Shirt

A half erect penis, either a result of being only partialy aroused, or being paranoid of being caught.

"So then she took off her pants and was about to start riding me, but then Steve came home, and we had to stop all of a sudden. After he left, we tried to get back into it, but my wang was freaked out, and I couldn't get it up past half-chub, so we just gave up."

The Urban Dictionary T-Shirt

a half erect half soft Wang, with the base being erect and the rest being plain old flaccid.

person 1- "Look at Zacharia, hes always rockin a half chub in science class, how disrespectful of him."
person 2- "don't blame him, he has it all the time. He cant control it, hes currently being tested in a lab, but scientists cant find the answer"
person 1" why cant he just be like Danny. Danny always has a full rager"
person 2- "Danny and Zacharia are just two totally different species, but Zacharia is rockin the chinstrap beard like a legend!"